CVE-2018-11453 Information

Description

A vulnerability has been identified in SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V10 V11 V12 (All versions) SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V13 (All versions V13 SP2 Update 2) SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V14 (All versions V14 SP1 Update 6) SIMATIC STEP 7 (TIA Portal) and WinCC (TIA Portal) V15 (All versions V15 Update 2). Improper file permissions in the default installation of TIA Portal may allow an attacker with local file system access to insert specially crafted files which may prevent TIA Portal startup (Denial-of-Service) or lead to local code execution. No special privileges are required but the victim needs to attempt to start TIA Portal after the manipulation.

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

http://www.securityfocus.com/bid/105115 https://cert-portal.siemens.com/productcert/pdf/ssa-979106.pdf

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8